Kirill Posted Thursday at 08:43 PM Share Posted Thursday at 08:43 PM Hi mates. My client wants to add PayPal Advanced integration as described here https://developer.paypal.com/studio/checkout/advanced/integrate to an older WHMCS integration. I know it exists in the most recent version but he has a WHMCS 8.4 setup and doesn't want to upgrade for internal reasons. As the redirect is not required by the gateway the third party flow seems to be irrelevant. The standard merchant flow seems to require the credit card details which is also not the case for PayPal Advanced flow. So now I'm confused which sample to begin with for this integration. Can someone suggest which one and how can I tweak to achieve the result? Long story short, I need to submit the invoice details to the backend to get the PayPal order id and then to submit it once again to the backend to capture the payment after PayPal does its magic. Is it even possible with any sample gateway modules provided by WHMCS? 0 Quote Link to comment Share on other sites More sharing options...
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